Soap holder



FIG. 1 is a top and left side perspective view of a soap holder showing my new design;

FIG. 2 is a left side elevational view thereof, the right side being a mirror image of that shown;

FIG. 3 is a front elevational view thereof; and,

FIG. 4 is a top plan view thereof. 

The ornamental design for a soap holder, as shown and described. 